Interpretation:
- Cars with 4 gears show the highest median mpg, making them the most
fuel-efficient choice for product development.
- Cars with 5 gears have more diverse fuel consumption (larger IQR),
indicating higher variability.
- Cars with 3 gears are more consistent but have lower mpg overall (less
efficient).
Recommendation:
Focus on developing 4-gear transmission models for efficiency, while
also monitoring variability across car designs.
Interpretation:
- Non-sport cars (vs=1) have higher median mpg, making them more
fuel-efficient compared to sport cars (vs=0).
- Non-sport cars show a wider IQR, meaning fuel efficiency is more
diverse across models.
- Sport cars are more consistent but consistently less
fuel-efficient.
Recommendation:
For cost-efficient production, emphasize non-sport (straight-engine)
models, as they offer better fuel economy.
Interpretation:
- A positive correlation exists: heavier cars tend to have higher
horsepower.
Unique cases:
- A medium-weight sport car with exceptionally high horsepower (~335
hp). Likely a performance/muscle car.
- Very light cars with low horsepower → fuel-efficient economy
cars.
- Extremely heavy cars with only moderate horsepower → inefficient
designs.
- A possible outlier: very light non-sport car with relatively high
horsepower → potentially unstable or unsafe.
Recommendation:
Engineering teams should balance weight and horsepower carefully. Avoid
overly heavy cars with low horsepower and very light cars with high
horsepower, as both present inefficiency or safety risks.